Commodity e.g. seed, distribution machine e.g. seeder, for use with tractor, has electronic controller to automatically adjust rotational speed of hydraulic motor of blower through hydraulic valve based on type and quantity of commodity

摘要

The machine has a blower (4) to convey and distribute commodity to individual distributor. The blower has a hydraulic drive with a hydraulic motor (8) and a hydraulic valve. An electronic controller (10) automatically adjusts the rotational speed of the hydraulic motor through the hydraulic valve based on the type and quantity of the commodity. The controller has a monitor to display the rotational speed of the blower.